How do you write the first five terms of the sequence a_n=(−1)^n(n/n+1)?

Camila Brandt

Camila Brandt

Answered question

2022-09-23

How do you write the first five terms of the sequence a n = ( - 1 ) n ( n n + 1 ) ?

Answer & Explanation

efterynzl

efterynzl

Beginner2022-09-24Added 12 answers

Given a n = ( - 1 ) n ( n n + 1 )
Let n = 1 : ( - 1 ) 1 ( 1 1 + 1 ) = - 1 2
Let n = 2 : ( - 1 ) 2 ( 2 2 + 1 ) = 2 3
Let n = 3 : ( - 1 ) 3 ( 3 3 + 1 ) = - 3 4
Let n = 4 : ( - 1 ) 4 ( 4 4 + 1 ) = 4 5
Let n = 5 : ( - 1 ) 5 ( 5 5 + 1 ) = - 5 6

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